With director Jon M. Chu's G.I. Joe: Retaliation opening June 29, Paramount and Hasbro are starting to amp up the promotion of the movie by releasing a great new trailer and by having some of the cast (Dwayne Johnson, Adrianne Palicki and D.J. Cotrona) talk about the film at CinemaCon in Las Vegas.  Prior to doing the interviews, I got to watch an impressive five minute sizzle reel and the new trailer with a group of reporters.  If you were disappointed with the first G.I. Joe movie, the sequel looks to be a big improvement, as it's going for a more real world approach while still trying to be a fun action movie.  Also, with the majority of the Joe's possibly getting killed in the first ten minutes  (which is why it's called Retaliation), the sequel could almost be considered a reboot.  The sequel also stars Bruce Willis, Channning Tatum, Byung-hun Lee, Ray Park, RZA, Ray Stevenson, Joseph Mazzello, Elodie Yung, and Walton Goggins.  Hit the jump for more.gi-joe-2-retaliation-movie-image-elodie-yungShortly after watching the footage, I recorded a video blog with Peter from Slashfilm and Alex from FirstShowing.  We talked about the sizzle reel, the new trailer, and our thoughts on the films.  While the sizzle reel and the trailer shared some of the same footage, the sizzle reel offered us brief looks at RZA as Blind Master, Walton Goggins as Warden Nigel James, Ray Stevenson as Firefly, and a whole bunch of cool looking action.  The sequel to Joe really looks like the comic book come to life.With CinemaCon starting today, this is the first of many video blogs that we'll be posting from Las Vegas.  Tomorrow we're most likely going to see the new Dark Knight Rises trailer and possibly the first footage from Peter Jackson's The Hobbit in 48fps.  Expect our reactions shortly after seeing the footage.  Until then, here's what we thought about G.I. Joe 2.For more on the Joe sequel, here's 9 character posters, new images, all our previous coverage., and my brand new exclusive video interviews with Dwayne Johnson and director Jon M. Chugi-joe-2-dwayne-johnson-bruce-willis-adrianne-palicki